Ubuntu
xserver-xorg-input-evdev package

  1. Bug #317025
  2. Comment #7

Comment 7 for bug 317025

Revision history for this message
DAP (akadap) wrote : Re: Scroll ball will not scroll horizontally

This bug still exists on 10.04. I guess technically it is more a case of incomplete support for this type of mouse. One must send a command to this mouse to get it out of compatibility mode and enable the extra features.
I tried to look at the source code for this, but found it rather opaque and do not understand it yet (let alone know where all of it is, or how it is interconnected).